What is Unique About Psalms 100 in the Bible?

What is unique about Psalms 100 in the Bible? What 7 actions should the believer do before God? And how do these acts point to the number 24 for the priesthood? Let us look first at Psalm 100 and see the 7 instructions the believer should perform before the High Priest Jesus Christ.

(Psalms 100:1-5) “Make a joyful noise unto the LORD, all ye lands. {2} Serve the LORD with gladness: come before his presence with singing. {3} Know ye that the LORD he is God: it is he that hath made us, and not we ourselves; we are his people, and the sheep of his pasture. {4} Enter into his gates with thanksgiving, and into his courts with praise: bethankful unto him, and bless his name. {5} For the LORD is good; his mercy is everlasting; and his truth endureth to all generations.”